*{
	margin: 0;
	padding: 0;
	list-style: none;
}
.header {
	height: 100px;
}

.w{
	background: rgb(37,41,46);
	
}

.logo{
    margin:  0 auto 0 auto;
	width: 1100px;
	height: 50px;
}

.w  ul{
	float: right;
	padding: 10px;
}

.w li {

	font-family: "微软雅黑";
	font-size: 18px;
	float: left;
	color: white;
	width: 100px;
}

.a{
	float: left;
	height: 50px;
}
.w .a li{
	float: left;
	color: rgb(57,82,93);
	width: 100px;
}
.logo-img {
	float: left;
	padding: 0;
	width: 120px;
	height: 50px;
	background: url(img/首页-1.png);
}
.logo-1{
	margin: 0 auto  0 auto;
	width: 1100px;
	height: 50px; 
}

.logo-1 ul{
	margin:  10px auto 0 auto;
	width: 1000px;
	height: 50px; 
	/*float: left;*/
	padding: 1px;
	border-bottom: solid 5px #EDEDED;
}

.logo-1 ul li {
	cursor: pointer;
 	font-family: "微软雅黑";
	font-size: 16px;
	float: left;
	color: black;
	width: 150px;
}

.logo .a li.active{
	color: white;
}
.logo-1 ul li.active{
	height: 50px;
	/* 底部的边框*/
	border-bottom: 3px solid rgb(37,41,46);
}

.logo-1 ul .search-img{
	float: right;
	margin:  10px auto 0 auto;
	width: 40px;
	height: 32px;
	background: url(img/search.png)
}

.box{
	background: url(img/首页.png);
	margin:  10px auto 0 auto;
	width: 1100px;
	height: 3000px;
	background-repeat: no-repeat;
	background-size: 100% 100%;
	background-position: 0 -140px;
}
